We have just released eXo JCR 1.8, the main changes include
- backup service with full and incremental modes
- improved replication for clustering use
- JCR WebDAV layer has been optimized for large files
- big JCR CIFS improvement with real NTLM (1,2) authentication, locks and notification support
- Owner inheritance support
- several major fixes for JCR core, import/export and versioning
- performance improvement especially for MySQL in heavy loading
You can download from our OW2 forge
Here are the release notes